Type-writing machine.



E. S. MAULSBY.

TWE wnnme MACHINE.

APPLICATION FILED DEC. 17, 1913.

1,214,570. Patented Feb. ,1917! WITNESSES:

Epwm s. MAULSBY, r sin-Sweep new JER S I R WRITER eem? new YTOR o tmnnnwoon TYPE- n. in, a con'eomi'rion" QF DEfiA WA'RE.

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To all whom it may concern:

lieit kii o\vn"t .l1 a tI E WIN S. MA LsnY, a, itiz n of the Unit d State es'di gi llidgewooih in the county ofher'gen and State of New Jersey, have invented certain new and useful improvements in (type- Writing Machines, of which the fgi llowing iS a'sj'iecilii'ation. i i

My invention re ates to appliances for typewriting maehines, for rotating the platen to line-space or advance val-ions work forms, sueh as eards, envelops, bills, and the like.

A feature of the invention is the provision of a handle or driver for"rapidly"rotating the platenaml bringing it to the same post'- tion each time the driver is' actuated, said driver,however permitting independent forward rotation of the platen, so that piece inlay be plat-ed" in "the machine fed to printing"ve tiei hile saidfdnver relnainsatrest; and after being written'npon i rthe usual manner; niay ejefeted' fi'roin the machine by 'aetaating the driye'rto 1 mm ii l ie T h t ii l m y be then" Sp e a n d to Ii orma 1 position, independently the platen. The device partien hrrl y ad ted for use in writing serijatz'm upon work members,

sneh asenvehips, card's, bills, invoices, or other work'forins whose lengthwill permit a' work member to be placed on the platen, written upon, and removed Tron; the 'platen \viihoht turning "the platen throngh" more than one eoz'n rete rotation, The driver" may be loosely mounted on U ii e l ud t l' e em ntii 119th direetions limited by stops, Qne 'bfKyhmh is preferably aidjlist t lilk to vary the forward limit of throw of the driver. lhe driving connection betwee rthe driver and'pla ten may be etl'eeted by means of a dog on the d river, adapted to engage a detent 01' tooth eonneeted totlie ilatenf Said tooth may be formed on a dish fixed the platen axle in the path'of said dog, so that when the driver is rotated forwai'd to eject a work member the will engage said tooth and .earry the platen forward to imposition 1g termined by the adjustable stop. Y The dr ver a when released is automatically reti rnerl by a spring, and before its return movement is completed, the dog is eammed out of path of the tooth. The parts are now 111 their normal position of rest, ready to ree nc n n g n c e 17, 1913. seria No. 307,177.

win: a card or other work m m er. When the latter-"is placed on the machine and "the platen rotated in the usual manner to bring the w rk mei'nber to printing position, the tooth rotating with the plafteny is carried beyond the driver; which during such r0 tation remains at rest.' After the rinting has beeneoinpleted the driver is rotated, independentiy'of theplaten dnrin its initial movement, but at an i'ntermefiate position, varying with the extent the platen has been rotated, the driver'engages said tooth and earries the platen forward while the driver is completing its forward or active stroke, thereby ejecting the work member.

The platen is now at its starting position,

to starting position.

The platen atea'eh eyclemoves through a. fixed distance, shown in the drawings to be preferably an 'exaet entire revolution; and this cycle is repeated for every envelop, ear-d or werk-pieeei Eaeh cycle or complete l'tfii'OiiltlQltOf the platen is erformedin'instahn'ents'; thef'init'ialinsta inent being erformed by th'eli1ie'-spacinmechanism, which gives the platenstepystep movements ml libilu/a; a'n'dthe' final instalment being performed the 'driver. During the initial instaln'ients, the platen advances independently of the diver,- and hence moves away from the ldl'iv'lr; i i the driver; it fove v y p the latter the final lnstalme'nt' of it's re'voliltion; the driver being arrested "when the Pl t may mn'pl es' it eyele- Hen' the typewritten envelop or eat-d too small to reach around the platen canbe' disch rged from the feed rolls automatically by simply turning the driver as fan it will go.

Other features and advantages will here inafter appear. y

In the accompanying drawings,Figure 1 is a perspective view showing the earria e of an Underwood typewriting' niachine'\\""ith the present invention attaehed tl-ie reto'i Fig. 2 is a part seetional end elevation View of the same, and showing a work member in position to be written upon. Fig. 3 is a similar view, but with the driver rotated to the limit of its forward movement. the work member as shown being carried be von'd"the feed rolls into position to be removed from the maehine. Fig. 4* shows the driver 110 thrown forward to position the platen preparatoryto placing a work member thereon. Fig. '5 sectional front elevation view of the invention. Fig. (3 is a disassembled view of the parts of the. attaehanent. Fig. T is a view similar to Fig. 2. but showing a roll mounted, on the platen frame. from which a web is fed over the platen.

A rotary platen 1 is fixed to the platen axle. 2 journaled in the ends of a platen frame 3, said ends united by an inclined pa per table or shelt' et at the rear of the platen. The platen .may be rotatedeitlmr by the usual hand wheels fifixed onthe ends of the platen axle, only one. of which hand wheels appears, however, or by the line-space mechanism comprising a.ratchet wheel 6 adapted to hedriven by a pawl 7 on a slide 8 actuated: by a line-space lever S). the slideand lever being returned by a spring 10, and the platen held in its actuated position by the usual spring detent 10.

A card o'r-other work member 11 may he placed-on the table rand fed forward between the platen and the rear and front feed rolls-12 and 13, by a. hand wheel 5 or the liliElSPtlCt'.JHQChtlIllSll']. After the card has been'typewritten upon, the platen may be further rotated to eject the card by means .ofa driver 14, herein shown as emnprising anarm extending-radially from a disk 15 loosely-=mounted' on the platen axle 2, said arm protidedwith a handle 16. The drivingconnection between the driver 14 and the platen is effected by means of a detent or tooth-'17 formed on a disk 18 fixed to the platen axle, said tooth projecting into the path ofa dog 19 earriedby the driver. Said dog is sl idably mounted on the driver 14,

so that it may be. retracted into position .to permit the" detent 17 to pass it when, the platen is rotated forward from the position shown, for txtlll'll'llt, in Fig. 7. 4

The dog 19 is mounted on lhcouter t'aee oi the driver 14 and is provided with a neck which extends through and is slidahle in a slot 21 in the driver, a guide plate 22 on the inner face of the driver being connected to said neck and forming an abutment for a spring 23 between said plate 22 and the driver for yieldingly holding the dog 19 in the Path of the detent 1:7. The backward or return rotation or stroke of the driver 14. is limited by a stop 24 which may be provided on a stationary disk 25 loosely mounted on the platen axle and held against rotation. as by means of=an adjustable connecting link 26 between the disk 25 and the platen frame. The forward or active rotation or stroke of the driver 14 is limited by an adjustable stop 27 which may be carried by a disk-2S looseon tjliezplaten axle, the

sto' rlheing shown as apin slidably mounted ina tube ,29 and :idapted to enter any one of a series'of o enmgs int-formed inthe disk f a forward direction until it engages the stop 27. and then ha vmg been released. is springreturned to its initial p0sition,Fig. 2, as by means of a coil spring 33 connected at its outer end to the driver and at its inner end to a hub of the stationary disk 25. The-dog 19 on the driver runs in close proximity to the periphery of the disk 18, whereby the dog is in position to pick up the detent 17 as the driver moves forward, andto carry the platen forward with the driver to the Fig. il-position. As the. driver completes its return movement, the dog is manned outward by a cam surface 34 on the disk 25, whereby when the platen is further rotated in positioning'a subsequent work member, the detent 1,7 is permitted to move past the (logo The operation may be reviewed as "follows: The driver may be first rotated forard to the Fig. 4 position to bring the platen to initial position, such operation belug required only as a preliminary to running aseries of -eards or other work members through the machine. Fig. 1 shows the parts in their normal position of rest ready to receive a eard or other work member. The card is placed on the machine and fed forward as usual between the platen and the. feed rolls 12 and 13, the platen being rotated. for example, by a hand wheel 5.- The. eard is then typewritten upon in the usual manner. and then the driver 14 is swung forward from its position (Fig. 2) against the stop 24 to theFig. 4 position against the forward stop 27. During this forward or active rotation of the driver the dog 19 thereon engages the detent 17, the position of the latter when thus engageddepending .on the distance the card has been rotated over the platen duringits intrmluetion and the writing thereon.

As the driver completes its forward or active stroke, the detent 17 and with it the platen, are carried ,up to the Fig.4 position. The card 11 is thus carried beyond the feed rolls. as shown in Fig. re'adv to here moved from the machine The platen is now in its initial position. having made just one complete revolutjonl The throw of the driver varies with the position of the forwardstop- 27." The.extent to which the throw:ofsthordriven 1t a6 a. a a a til e 14 a newform will be brought into i at ' eh ve ,v y eluding a driver normally disco nected from a i t platen a sto against which said driver is, the, rotation of I taatjen of, the driver 14 for ejecting the maybe shortened by adjustin the sm 27, is determined by thedistance that the piiiten is rotated in introducing the work member and eoinpleting the Writing thereon. v a That the platenprior to the ac wd'rk mem e must beat least sufficient to Jhnctldnwlthbllls or other Work forms 1na position t a t a, disconnected forms or den ing; detent i7 admit normal pqsitiea,

Fig.1 to aLs-pdint beyond the dog 19 so" that latter may pick up" we detentiwhen the whale is se arated; a i

1111 F g, 7, a ran as e a ate platerilframe and may comprise either a seiis of printed mans or may be a web of paper for use either alone or in con- (1 fed to the machine. If said web c'tinsists of a series to the circumference of the platen, whereby at each operation of the v be typewritten upon; or forms are used in conjunction with work members, the placing of a workmember in position to be yvrittehupon, will also automatically position a printed form of the Web. The may a so comprise a tally strip for use in theiusliaimannerr v t m I I Variations maybe resorted to within the scope of-the' invention, and portions ofthe im rcvements m y be used without others.

= aving thus describedmy invention, I

' than 1.

ter may. have been a 1,1118 ombinatio with t ami ble platen, of means for "ving the same suceessivo mechanically l mited rotations, in

binding a driver'normally disconnected from t pla normally rests' duringthe advance rotation of theplaten; meansfor giving the platen initialadvance movements independently of thewdriver; means for automatically connectin said driver, during, its active stroke,

sai platen at any-point to which the latvanced independently d f IhedriVer, soas to drive the platen for- Wardly a variable distance necessary to complete the forward rotation thereof through such mechanically limited distance;

and a stop separate from the first-named s'tiip for arrestln'g the active stroke of. said combination tvith a revenue of means for :ving the same sue mechanically limitedrotatlons, 1n-

pla

n an rests ang theadvance memes (if platen; means for giving the platen initiate, taste movemen s independently f T d iif man er etbmet e l yfl c0 @116 driver, vd n as active oke tha a any h nt o which the lat jj mayhave been a vsneea ciadiep ndna v of forms, said forms may e eqan in length mil a stop again t which said driver was driver, escalat ng the p aten forwardl a va'rmbledistaricenecessary to complete forward rotation thereof through such meehanieany limited 1 distance; and a stop parate fi-om the first-named stop for means for enabling said driver to overtake fixed, predetermined e away from a the driver while the latter is stationary, and

the platen and thereafter positively rotate the platen throughout the final instalment of its said rotation. t a 14. The combination with t a revolllble platen, of means for rotating the same in instalments through ing step-by-step line-spacing mechanism, a crank for rotating the platen through its final instalment,"-a dog driven by said "crank and normally withdrawma tooth "fixed to the platen to be engaged b said dog'for dliVlIlgtliB platen, means "d ependentupon the movement of thef'cra-nk for. projecting the dog, a stop for arresting the platen and crank with the platen in a rotative position at'the completion of the cyele, a spring for returning said crank to normal position "while stationary, and means for automatically withdrawing the'dog upon the return of the crank to normal position, so'that said tooth a fixed cycle, comprisa predetermined i the platen remains a may, during the ensuing step-by-step linethe platen, pass by said dog in a c,

and normally WithdraWmatooth fixedto the platen to be engaged by said dog for driving the platen, means de endentupon the movement of the crank f dr projecting the dog, a stop crank with the platen in a predetermined rotatl-ve position at the completion of the cycle, a spring for returning said crank to normal position while the platen remains stationary, and means for Withdrawing the dog upon the returno'f the a crank to normal position, so that said tooth may, during the ensuing step-by-step line,- ed i t aten, pa y s dog in P sition to be renga'gedthereby at the next o rational? the ci'ank, said-f crank 4 or res't ng being adjustable extent of throw of t a crank;

for arresting the platen and automatically. 7

v jrevoluble 1 a or rotating the same in to vary the ing the the platen, thereby ing the initial instalments, ing a. driver for maklng the final instalment,-

i 6. In a typewriting machine, the combination with a revoluble platen, of means for advancing the same through successive cycles, each consisting of a complete revolution, and for mechanically determining the point of completion of each cycle, comprising line-by-line feeding mechanism for givlaten its initial movements from the starting point, a driver at rest during the advancing of the platen by said linespacing mechanism, a tooth or lug rotating with the platen past said driver during such line-spacing movements, means to couple said driver to said tooth or lug at any point to which the latter may have rotated with to enable said driver to advance the platen to complete the cycle,

and means for arresting thedriver when said tooth or lug reaches the 'point which it occupied at the previous arrest of said driver; said driver being returnable to normal position while the platen'remains stationary. 7. The combination with a revoluble platen, ofmeans for rotating the same inin- .stalments through a. cycle of fixed extent,

including line-spacing mechanism for makand also includand thereby bringing the platen always to the same predetermined position, irrespective of the extent'to which the platen is initially advanced by the operations of the line-spacing mechanism; said driver being stationary at the operation of said line-spacing mechanism.

8. The combination with a revoluble platen, of means for rotatin thesame in nstalments through a cycle 0 fixed extent, including line-spacing mechanism for making the initial instalments, and also includmg a driver for making the final instalment, and thereby bringing the platenalways the same predetermined position, irrespective of the extent to which ing mechanism; said driver being stationary r mains fixed.

9. In a typewriting machine, the combination with a revoluble platen, "of means for advancing the same throug'h successive cycles, each consisting of a complete revolution, and for mechanically determining the oint of completion of each cycle, comprismg line-by-line feeding mechanism for giving the platen its initial movements from the starting point, a driver at rest durmg 'the advancing ofthe platen by said line-spacing mechanism, means to couple said driver to said platen at any point to which the latter may have rotated, thereby toenable said the platen is initially advanced by the operations of the line-spac- 'structed to of the driver to normal position to withdraw I I the coupling device, to permit the advance of the platen while the driverremains stationary at the subsequent operation of said line-spacing mechanism.

10. In a typewriting machine, the combination with a revoluble platen, of means for advancing the same through successive cycles, each consisting of a complete revolution, and for mechanically determining the mint of completion of each cycle, comprismg line-by-line feeding mechanism for giving the platen its initial movements from the starting point, a

said line-spacing mechanism, a tooth or lug rotating with theplaten past said driver during such linespacing n'iovements, means to couple said driver to said tooth or lug at any point to which the latter may have rotated with the platen, thereby to enable said driver to advance the platen to complete the cycle, means for arresting the driver when said. tooth or lug reaches the point which it occupied at the previous arrest of said driver; said driver being returnable to normal position while the platen remains stationary, and a fixed device to intercept said coupling memher to withdraw it from the path of said tooth or lug.-

r In a typewriting machine,-the combination witlr-a rotary platen, of mechanism for efl'ecting mechanically limited cycles of platen movements, each cycle being a=com-- plete single revolution of said'platen, comprising line-spacing mechanism for effecting initial movements 'of the platen, and 1 also comprising a driver for completing the ad-- vance of the platen through its cycle; said platen being rotatable by said line-spacing mechanism while said driver is at rest, devices for coupling the driver to the platen;- said coupling devices efiective at any point to which the platen may have been rotated by said line-spacing mechanism, whereby said driver is enabled to complete the cycle of the platen movements, means for arresting the driver at the completion of the revolution of the platen, and a spring for returning the driver while the platen remains stationary, said coupling devices being conrmit the independent return movement 0 the driver and the advance of the platen past the driver. v

12. In a typewriting machine, the combination with a revoluble platen having a shaft, of adevice fixed to the shaft and having a single tooth or lug, and means for redriver at rest during the advancing of the platen by lug to bring the same to a fixed position- .platen, and a driver to drive tl volving the platen through successive predefined cycles. each consisting of an entire revolution, said revolving means including line-spacing means for giving the platen initial movements, and also includinga driver having means to engage said single tooth or at each operation of said driverysaid single tooth or lug being movable past said drlver at the initial operations of; said platen effected by said line-spacing mechanism.

13. In a t \;'pe\vriting machine, the eombi nation with a revoluble platen, 'of means for giving the same successive, predefined cycles of movements, each cycle consisting-ota complete revolution,.,said means comprisin line-spacing mechanism for efi ecting move ments of the platen at the initial fpo" its cycle. and also including a sing tooth or -lug having a fixed connectio" or the ilatenby means of said tooth or lug;- sar mg rotatable by Silltl line-spacing mecha- 1 uislu'while the driver is at rest; a dog caused by said driver to plck up sald'tooth or lug al any point to which the platen mayhave been advanced by said llue spacl ng mechanism, and thereby couple theplaten and driver for completion of the cycle of the platenby said driver; separate stops to limit the advance and return strokes of the driver; the latter being returnable while the platen and a stationary supremains stationary; port to which sa 1d stops are-connected; said support having a cam for withdrawing said dog at the completion of the return movement ofthe driver, to permit sa'idtooth or lug to pass said dog at the initial movements of the=p1aten in its next cycle.

14. The combination with a revoluble an instal m platen be- "to make the final instalment, of variable length, thereby to complete the cycle of movements of said platen.

.15. The combination with a revoluble lateln of means ,f()l" iltl\"illl('illg said platen l ugh a fixed cycle amounting to" '1 e1 i t ,ire revolution; said plmen-advancing.1n ans comprising linespacingmechanism for giving the platen ad Hbit'zmv step-b \-'-step movements to constitute theinitial instalments in said. cycle, and also comprising a jdriver;stationary during such step-by-step u1ovemehts, means to limit the stroke of' said driver in both directions, means to e able the driver in moving from one end to the other of its fixed stroke, to make the final instalment, of variable length, thereby to complete the cycle of movements of said platen, and a feed-roll to run upon said. platen to cooperate with said platenadvaneing means,- by both feeding and releaslng during each such cycle a work-piece which is too short to extend entirely around the platen.

\ EDWIN S. MAULSBY. Witnesses:

Trros H. InoNs, F. E. ALEXANDER. 

